Share this post

Link to post

Share on other sites

Boats and Guns are like Golf clubs different ones for different jobs. Or at least that's the excuse I give to female folk in my life. My 18ft cedar strip canoe was perfect for getting wilderness miles under my belt but only sailed downwind loaded with gear(suicide without). My Dad's Shark catamaran was perfect for Partying , Sunbathing Ladies and getting laid as a young man(But I wish it had a cabin.) Sunfish Fj Hobie 1 It really didn't matter just so long as the boats were exactly alike for Racing against my Dad. My free craigslist Mac Dingy is so cool I can't wait to find one or two more.

This doesn't exist yet but it may by the end of next year. At any rate, despite wailings of the non-believers, the boat has great potential to offer some disabled and physically restricted people a fast ride on a self-righting planing monohull with extremely fast electrically moved ballast. I will do my utmost to get the proto built when I've started testing my trimaran test model which will be any day now. More detail and updates here: http://www.boatdesign.net/forums/sailboats/crossbow-fl-43615.html

Share this post

Link to post

Share on other sites

This doesn't exist yet but it may by the end of next year. At any rate, despite wailings of the non-believers, the boat has great potential to offer some disabled and physically restricted people a fast ride on a self-righting planing monohull with extremely fast electrically moved ballast. I will do my utmost to get the proto built when I've started testing my trimaran test model which will be any day now. More detail and updates here: http://www.boatdesign.net/forums/sailboats/crossbow-fl-43615.html

Crossbow fl Specifications: (changes are to be expected)

-----

Hull length-15.6'

Beam- 4.75'

---at waterline-3.75'

Sail Area-(boat will use a carbon A Class wing mast laid up specifically for this boat).

It looks like the trapwing ballast is relatively high. If you haven't yet, I suggest evaluating the righting moment over the full 180 degrees, and checking that the one crew standing on the the DSS foil is able to right it from a capsized or inverted position. (I'm also trying to picture how one stands on the DSS foil)

Also, I suggest extending the widened portion of the deck all the way aft. In gnarly conditions that's a nice place to sit.

This doesn't exist yet but it may by the end of next year. At any rate, despite wailings of the non-believers, the boat has great potential to offer some disabled and physically restricted people a fast ride on a self-righting planing monohull with extremely fast electrically moved ballast. I will do my utmost to get the proto built when I've started testing my trimaran test model which will be any day now. More detail and updates here: http://www.boatdesign.net/forums/sailboats/crossbow-fl-43615.html

Crossbow fl Specifications: (changes are to be expected)

-----

Hull length-15.6'

Beam- 4.75'

---at waterline-3.75'

Sail Area-(boat will use a carbon A Class wing mast laid up specifically for this boat).

It looks like the trapwing ballast is relatively high. If you haven't yet, I suggest evaluating the righting moment over the full 180 degrees, and checking that the one crew standing on the the DSS foil is able to right it from a capsized or inverted position. (I'm also trying to picture how one stands on the DSS foil)

Also, I suggest extending the widened portion of the deck all the way aft. In gnarly conditions that's a nice place to sit.

I'm not trying to be a smart ass but the thread I linked to above goes into great detail! DSS foils would NEVER be used to right the boat. The buoyancy in one side of the wing is about twice the ballast sliding within the wing. The wing can be used to bring the boat up to an angle of heel of about 20 degrees even with the weight max out on the lee side! In this boat you would never sit on the deck-you sit down inside the boat either in a pivoting center seat or in a revolving seat where you're facing sideways-very experimental.

Share this post

Link to post

Share on other sites

This doesn't exist yet but it may by the end of next year. At any rate, despite wailings of the non-believers, the boat has great potential to offer some disabled and physically restricted people a fast ride on a self-righting planing monohull with extremely fast electrically moved ballast. I will do my utmost to get the proto built when I've started testing my trimaran test model which will be any day now. More detail and updates here: http://www.boatdesign.net/forums/sailboats/crossbow-fl-43615.html

Crossbow fl Specifications: (changes are to be expected)

-----

Hull length-15.6'

Beam- 4.75'

---at waterline-3.75'

Sail Area-(boat will use a carbon A Class wing mast laid up specifically for this boat).

It looks like the trapwing ballast is relatively high. If you haven't yet, I suggest evaluating the righting moment over the full 180 degrees, and checking that the one crew standing on the the DSS foil is able to right it from a capsized or inverted position. (I'm also trying to picture how one stands on the DSS foil)

Also, I suggest extending the widened portion of the deck all the way aft. In gnarly conditions that's a nice place to sit.

I'm not trying to be a smart ass but the thread I linked to above goes into great detail! DSS foils would NEVER be used to right the boat. The buoyancy in one side of the wing is about twice the ballast sliding within the wing. The wing can be used to bring the boat up to an angle of heel of about 20 degrees even with the weight max out on the lee side! In this boat you would never sit on the deck-you sit down inside the boat either in a pivoting center seat or in a revolving seat where you're facing sideways-very experimental.

Thanks for the comments....

Sorry Doug, I missed the link and didn't realize this was for a sailor with limited mobility.

I get that with the wing in the middle position or extended to leeward the bouyancy of the pod will exceed the ballast and it will be self righting. But a sudden capsize to leeward with the wing extended fully to windward looks like it will turtle the boat, unless you have sufficient ballast in a keel/daggerboard mounted bulb to overcome the turtling moment of that fully-extended wing. A mast head float would also help. Is the center seat a safe position with the boat on it's side? If so, a mast head float keeps you out of trouble. My experience sailing I-14s is that capsizes to windward, when planing downwind are slow and gentle. Capsizes to leeward at speed are extremely quick and violent. Plunging the bow deep into the back of a wave at 15 kts is also sudden and violent and can end up in a windward or leeward capsized position. It looks like your most recent version has a ballast bulb, and I see from the BoatDesign thread that you're toying with a mast-head float, so maybe you've taken these things into consideration.

This doesn't exist yet but it may by the end of next year. At any rate, despite wailings of the non-believers, the boat has great potential to offer some disabled and physically restricted people a fast ride on a self-righting planing monohull with extremely fast electrically moved ballast. I will do my utmost to get the proto built when I've started testing my trimaran test model which will be any day now. More detail and updates here: http://www.boatdesign.net/forums/sailboats/crossbow-fl-43615.html

Crossbow fl Specifications: (changes are to be expected)

-----

Hull length-15.6'

Beam- 4.75'

---at waterline-3.75'

Sail Area-(boat will use a carbon A Class wing mast laid up specifically for this boat).

It looks like the trapwing ballast is relatively high. If you haven't yet, I suggest evaluating the righting moment over the full 180 degrees, and checking that the one crew standing on the the DSS foil is able to right it from a capsized or inverted position. (I'm also trying to picture how one stands on the DSS foil)

Also, I suggest extending the widened portion of the deck all the way aft. In gnarly conditions that's a nice place to sit.

I'm not trying to be a smart ass but the thread I linked to above goes into great detail! DSS foils would NEVER be used to right the boat. The buoyancy in one side of the wing is about twice the ballast sliding within the wing. The wing can be used to bring the boat up to an angle of heel of about 20 degrees even with the weight max out on the lee side! In this boat you would never sit on the deck-you sit down inside the boat either in a pivoting center seat or in a revolving seat where you're facing sideways-very experimental.

Thanks for the comments....

Sorry Doug, I missed the link and didn't realize this was for a sailor with limited mobility.

I get that with the wing in the middle position or extended to leeward the bouyancy of the pod will exceed the ballast and it will be self righting. But a sudden capsize to leeward with the wing extended fully to windward looks like it will turtle the boat, unless you have sufficient ballast in a keel/daggerboard mounted bulb to overcome the turtling moment of that fully-extended wing. A mast head float would also help. Is the center seat a safe position with the boat on it's side? If so, a mast head float keeps you out of trouble. My experience sailing I-14s is that capsizes to windward, when planing downwind are slow and gentle. Capsizes to leeward at speed are extremely quick and violent. Plunging the bow deep into the back of a wave at 15 kts is also sudden and violent and can end up in a windward or leeward capsized position. It looks like your most recent version has a ballast bulb, and I see from the BoatDesign thread that you're toying with a mast-head float, so maybe you've taken these things into consideration.

No ballast bulb on the Crossbow fl at this point.(where did you see that? not in the Crossbow thread unless talking about an earlier 18' version?). Probable masthead flotation.The wing moves so fast that even in your scenario it would be centered and on its way to righting the boat within 1-2 second max. Center seats are used on boats like the Martin 16, 2.4 meter and pivoting(not rotating) crew seats Bethwaites 18' Skud.

Share this post

Link to post

Share on other sites

That Contender ad has to get the prize for best advertising copy of all time. Lovely boat but read the praise;

When men say “this never happens”, it is generally understood (by women) to be a bold and blatant lie. But in this case, it is true. This. Never. Happens. (Okay, well it happens maybe once every 12 years or so.) Up for sale is a ready to race 1977 Bonezzi. For those who don’t know, these boats are lovingly hand crafted in the small village of Mantua, Italy, by Vito Bonezzi and to say he is a boat builder would be an injustice on par with what is unfolding at the Oscar Pistorius trial. No. Vito Bonezzi is a boat artist. Contender World Championships are consistently won by Vito’s children, of which only a few are birthed each year and they remain perpetually and unnaturally in their prime, like Lance Armstrong, the Real Housewives, and zombie lions.

But if its lineage doesn’t impress you, then understand, gentlemen, that sailing this blonde beast will be the equivalent of bathing yourself in a tub of equal parts Axe body wash and Old Spice, then donning an Armani tuxedo with bottles of Moet tucked into each arm, the keys to your Bentley jingling in one hand, and your phone ringing in the other, with the caller being George Clooney wondering despairingly why you haven’t RSVPed to his invite to his party (in your honour) on Lake Como. That’s right. You will have women coming at you with such intense and all-consuming ardour that you’ll have to beat them off with a stick (figuratively, not literally in the Chris Brown sense).

As mentioned, this panty annihilator is ready to go – with carbon sticks, two sails (regatta worthy (Wavelength) and practice (Cicada)), foils, tenting top cover, full travel covers (top and bottom), dolly, and trailer. The cheddar being requested for the keys to the city of long sweaty nights is $6500. And in case you want to know why is this sleek wooden sex panther is up for sale, it’s because the seller is a tired, tired, old man who has settled into a monogamous relationship with an International 14, and as with all relationships, it’s hoovering up all of his available cash, time, and will to live.

Share this post

Link to post

Share on other sites

This doesn't exist yet but it may by the end of next year. At any rate, despite wailings of the non-believers, the boat has great potential to offer some disabled and physically restricted people a fast ride on a self-righting planing monohull with extremely fast electrically moved ballast. I will do my utmost to get the proto built when I've started testing my trimaran test model which will be any day now. More detail and updates here: http://www.boatdesign.net/forums/sailboats/crossbow-fl-43615.html

Crossbow fl Specifications: (changes are to be expected)

-----

Hull length-15.6'

Beam- 4.75'

---at waterline-3.75'

Sail Area-(boat will use a carbon A Class wing mast laid up specifically for this boat).

It looks like the trapwing ballast is relatively high. If you haven't yet, I suggest evaluating the righting moment over the full 180 degrees, and checking that the one crew standing on the the DSS foil is able to right it from a capsized or inverted position. (I'm also trying to picture how one stands on the DSS foil)

Also, I suggest extending the widened portion of the deck all the way aft. In gnarly conditions that's a nice place to sit.

I'm not trying to be a smart ass but the thread I linked to above goes into great detail! DSS foils would NEVER be used to right the boat. The buoyancy in one side of the wing is about twice the ballast sliding within the wing. The wing can be used to bring the boat up to an angle of heel of about 20 degrees even with the weight max out on the lee side! In this boat you would never sit on the deck-you sit down inside the boat either in a pivoting center seat or in a revolving seat where you're facing sideways-very experimental.

Thanks for the comments....

Sorry Doug, I missed the link and didn't realize this was for a sailor with limited mobility.

I get that with the wing in the middle position or extended to leeward the bouyancy of the pod will exceed the ballast and it will be self righting. But a sudden capsize to leeward with the wing extended fully to windward looks like it will turtle the boat, unless you have sufficient ballast in a keel/daggerboard mounted bulb to overcome the turtling moment of that fully-extended wing. A mast head float would also help. Is the center seat a safe position with the boat on it's side? If so, a mast head float keeps you out of trouble. My experience sailing I-14s is that capsizes to windward, when planing downwind are slow and gentle. Capsizes to leeward at speed are extremely quick and violent. Plunging the bow deep into the back of a wave at 15 kts is also sudden and violent and can end up in a windward or leeward capsized position. It looks like your most recent version has a ballast bulb, and I see from the BoatDesign thread that you're toying with a mast-head float, so maybe you've taken these things into consideration.

No ballast bulb on the Crossbow fl at this point.(where did you see that? not in the Crossbow thread unless talking about an earlier 18' versi on?). Probable masthead flotation.The wing moves so fast that even in your scenario it would be centered and on its way to righting the boat within 1-2 second max. Center seats are used on boats like the Martin 16, 2.4 meter and pivoting(not rotating) crew seats Bethwaites 18' Skud.

Doug,

Must have been the 18' version in the BoatDesign thread I saw. But 1-2 seconds may be too slow. If it's automated maybe not. Consider this scenario: Sailing along with ballast partially extended when a gust hits. Natural reaction of the driver is to extend the ballast further to windward. It's not enough and the boat starts to go over. When the sailor figures out it's going over the heel angle is probably around 45 degrees. That final 45 degrees usually goes very fast, because now the weight of the mast, and the weight of the driver, work in concert with the wind to finish the job at the same time that the righting arm is being reduced. Will the driver have the presence of mind at that time to reverse the joystick position, and if so, will it be too late anyway?

I was out in my I-14 yesterday and managed to capsize coming out of a gybe (to the new leeward side). The time between realizing we were going over, until the mast hit the water was very short. I didn't have the presence of mind to punch the stopwatch function on my watch to time the process but I'm thinking it was 1 second or less. My crew managed to climb over the rail onto the centerboard, but I dropped into the water, realizing that at that point, if I had tried to climb over too, I would have started the boat well on it's way to a turtle. With the only crew (you) strapped into the seat, I see the same turtling moment that I would have created had I insisted on climbing over the boat once the mast was in the water. At the very least the mast-head float seems like cheap and easily modified/removed insurance during your initial testing phase.